Demographics and Statistics

The U.S. Census Bureau collects data describing all U.S. citizens. Includes demographics by race, ethnicity, gender, age, and other factors as well as statistics on housing and economics. Data is available on national, state, and local levels.

"The General Social Survey (GSS) conducts basic scientific research on the structure and development of American society with a data-collection program designed to both monitor societal change within the United States and to compare the United States to other nations."

"The goal of this site is to bring together knowledge of our social, political and economic world. Where we are, how we got here, and where we are going. A solid understanding of the world is the first step for improving living conditions of all people throughout the world."

Public Opinion and Polls

"Combining more than 75 years of experience with its global reach, Gallup knows more about the attitudes and behaviors of the world's constituents, employees, and customers than any other organization."

"The Roper Center for Public Opinion Research is one of the world's leading archives of social science data, specializing in data from surveys of public opinion. The data held by the Roper Center range from the 1930s, when survey research was in its infancy, to the present. Most of the data are from the United States, but over 50 nations are represented."

Criminology

The mission of the U.S. Bureau of Justice Statistics is "to collect, analyze, publish, and disseminate information on crime, criminal offenders, victims of crime, and the operation of justice systems at all levels of government."

The mission of the archive is "to facilitate research in criminal justice and criminology, through the preservation, enhancement, and sharing of computerized data resources; through the production of original research based on archived data; and through specialized training workshops in quantitative analysis of crime and justice data."